Socket for incandescent lamps.



Patented June 3, I902. v

.c. A. CHASE. SOCKET 'FOR INCANDESGENT LAMPS.

(Appliation filed Jan. 16, 1902.)

' (No Model.)

' T72 van or;

UNITED 1 PATENT omce.

CHARLES A. CHASE, OF CHICAGO, ILLINOISS SOCKET FOR INCANDESCENT LAMPS.

SPECIFICATION forming part Of Letters Patent N0. 701,680, dated. June 3,1902. Application filed January 16, 1902. Serial No- 89,947. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES A. CHASE, a citizen of the United States,residing at Chicago, in the county of Cook and State of'lllinois, haveinvented a certain new and useful Improvement in Sockets for.Incandescent Lamps, of which thefollowing is a specification. I

My invention relates to sockets for incandescent lam'ps,'and hasfor-its-object to provide a cheap and simple socket in cwhich the partsshall be so arranged as to secure a very light porcelain body portionand so as to have throughout the socket'a wide interval between theterminals and so as to secure other advantages hereinafter specificallyreferred to.

My invention is illustrated in the accompanying drawings, wherein-Figure 1 is a vertical section of a socket with an incandescent lamp inposition. Fig. 2 is a plan view of the same with the lamp removed. Fig.3 is a bottom view of the same.

Like parts are indicated by the same lettering.

A is the body portion, shaped, preferably, as shown and having the baseB preferably enlarged or widened, as indicated. The base B is cut awayat B and B to facilitate the handling of the terminals, and it isprovided with a center aperture 0, through which a securing-screw can beinserted. The upper portion of this aperture is enlarged at O to receivethe head of such screw, and the latter is driven down, so as to beseparated by a considerable interval from the overhanging terminalproper. The base is provided with another aperture D, having an enlargedportion D for a screw-head. On the top of the base and within the body Ais preferably raised a surface E, through which the aperture D passes,and one terminal F, with the screw F, is carried in through the cut-awayportion B and placed on top of this'enlarged portion E and there securedin position by means of the screw Fd; This terminal F is preferably cutoutat F and'the projecting terminal on the lamp F engages the same, andthus contact is made with one terminal of the lamp. The base has anotheraperture or cut-away portion in its lower side, as indicated at G, andin this lies the head of the screw, the shank of which projects out ofthe side opening'G. The screw G passes through the vertical portion G?of the terminal, the horizontal portion of which, G projects out throughthe cut-away portion B and, like the other terminal, has the screw F.Thus by the screw G and nut G this terminal is held in position, itsupper vertical portion lying in the groove H, formed in the inside ofthe body A.

The groove H doesnot extend to the top of the body portion; butone ortwo turns of the screw-thread-J are vformed above the end of thisgroove, sothat when the parts are all in position .the groove and thespring-contact lying therein are securely sealed to prevent theadmission of moisturethereto.

It will be seeniby referring to Fig. 1 that since there is no metallining in the body portion A the distance between the contacts in thesocket is always as great as the distance between the two terminals onthe lamp or greater. This is true within the socket, because there arewithin the socket only the terminal pieces F and the terminal pieces H,and it is true outside or on the bottom of the socket, because theterminals are separated by the width ofthe central portion of thesocket.

The arrangement of the terminals in the socket, as indicated, is suchthat the perforations. or apertures in the body of the socket arearranged together along one of its diametersgahd thus the side portionsof the socket are free to behollowed out and the weight of the socketandquantity of metal therein greatly reduced.

The use and operation of my invention will be sufficiently understoodfrom what has already been said. The size, form, and shape of the partsmay be somewhat altered without departing from the spirit of myinvention.

I claim- I j 1. A socket for incandescent lamps comprising a tubularportion, a base portion, a diaphragm-like bodybetween the two, a slot inthe side of thetubular portion, aterminal which lies. in such" slot andprojects downwardly so as to be secured at'the base, and means forsecuring the terminal comprising a screw-bolt with head and nut, acut-away movable along such base, a horizontal securing-bolt passingthrough such terminal, and openings and recesses in the base wherebysuch terminal and bolt may be moved vertically in or out of engagementwith such opening in the base, the screw traveling sidewise in suchvertical motion.

CHARLES A. CHASE.

Witnesses:

HOMER L. KRAFT, A. A. LUDLoW.

